Publications

Jacob Cook is a Lecturer in the Marketing Unit at Harvard Business School, where he teaches the EC course Digital Marketing & AI Workshop. His work focuses on how companies design and scale customer acquisition and retention strategies using digital marketing,... View Details

13 Sep 2006
Op-Ed

Rising CEO Pay: What Directors Should Do

Ask any thoughtful corporate board member what they are most concerned about these days, and it is not Sarbanes-Oxley. It is CEO pay. Directors worry because shareholders continue to express outrage, and the media attention to the issue will not go away. Directors are... View Details

Keywords: by Jay W. Lorsch

Research Summary

Analyst Disagreement, Mispricing and Liquidity (with Ronnie Sadka)

We document a close link between mispricing and liquidity by investigating stocks with high analyst disagreement. Previous research finds that these stocks tend to be overpriced, but prices correct down as uncertainty about earnings is resolved. We conjecture that one... View Details

September 2022 (Revised November 2023)
Case

Wordle

By: Karen G. Mills, Christina Wallace, Ebehi Iyoha, Gabriella Elanbeck and Morgane Herculano

After sourdough bread, countertop chive gardens, and vaccine selfies came a pandemic-era trend that everyone seemed to be in on: one daily chance to guess a five-letter word and crow about your success on social media via little green and yellow squares. From a... View Details

Keywords: Games; Innovation; General Management; Mergers and Acquisitions; Trends; Entrepreneurship; Bids and Bidding; Consumer Behavior; Entertainment and Recreation Industry; Technology Industry

Article

Financing Constraints, Home Equity and Selection into Entrepreneurship

By: Thais Laerkholm Jensen, Søren Leth-Petersen and Ramana Nanda

We exploit a mortgage reform that differentially unlocked home equity across the Danish population and study how this impacted selection into entrepreneurship. We find that increased entry was concentrated among entrepreneurs whose firms were founded in industries... View Details

Keywords: Mortgage Reform; Home Equity; Financing Constraints; Entrepreneurs; Entrepreneurship; Mortgages; Denmark

11 Sep 2012
First Look

First Look: September 11

PublicationsIndispensable: When Leaders Really Matter Author:Gautam Mukunda Publication:Harvard Business Review Press, 2012 Abstract Will your next leader be insignificant-or indispensable? The importance of leadership and the impact of individual leaders has long... View Details

Keywords: Sean Silverthorne

14 Aug 2009
Working Paper Summaries

Insider Trading Preceding Goodwill Impairments

Keywords: by Karl A. Muller III, Monica Neamtiu & Edward J. Riedl

12 Feb 2008
First Look

First Look: February 12, 2007

but all share a belief in the importance of understanding change over time. Publisher's site: http://www.oup.com/us/catalog/general/subject/Business/History/ The Effect of Macro Information Environment Change on the Quality of Management View Details

Keywords: Martha Lagace

25 Feb 2019
Research & Ideas

How Gender Stereotypes Kill a Woman’s Self-Confidence

Women make up more than half of the labor force in the United States and earn almost 60 percent of advanced degrees, yet they bring home less pay and fill fewer seats in the C-suite than men, particularly in male-dominated professions... View Details

Keywords: by Dina Gerdeman

17 Jul 2023
Research & Ideas

Money Isn’t Everything: The Dos and Don’ts of Motivating Employees

Little & Company motivated board members of Gulfstream to sign up new clients: with model airplanes. The wealthy and influential members of the private plane company’s board reveled in the bragging rights conveyed by each individual model plane they View Details

Keywords: by Avery Forman

Article

The Economic Consequences of Hospital Admissions

By: Carlos Dobkin, Amy Finkelstein, Raymond Kluender and Matthew Notowidigdo

We use an event study approach to examine the economic consequences of hospital admissions for adults in two datasets: survey data from the Health and Retirement Study, and hospitalization data linked to credit reports. For non-elderly adults with health insurance,... View Details

Keywords: Personal Finance; Borrowing and Debt; Insurance; Insolvency and Bankruptcy; Health Care and Treatment

Read Now

February 2019
Case

Canibal—Play It Green!

By: Frank V. Cespedes, Joseph B. Fuller, Tonia Labruyere and Elena Corsi

In 2011, Canibal launched a machine that could sort and compress aluminum cans, plastic bottles, and cups. Users could play a jackpot-style game on the machine’s digital display, while disposing of their beverage containers and earning coupons or other rewards. The... View Details

Keywords: Sales Growth; Recycling; Start-up; Scaling; Market Selection; Sales; Marketing; Business Startups; Growth and Development Strategy; Segmentation; Product Positioning; Technology Industry; France

June 2012
Article

Sweeping Dishonesty under the Rug: How Unethical Actions Lead to Forgetting of Moral Rules

By: Lisa L. Shu and Francesca Gino

Dishonest behavior can have various psychological outcomes. We examine whether one consequence could be the forgetting of moral rules. In four experiments, participants were given the opportunity to behave dishonestly, and thus earn undeserved money, by over-reporting... View Details

Keywords: Dishonesty; Moral Codes; Moral Forgetting; Unethical Behavior; Behavior; Ethics; Research

For the first time in anybody's memory we're starting to see the biopharmaceutical industry and the medical industry at large affected by a recession. I think there are a couple of reasons. One is very high unemployment, and every time the unemployment rate goes up,... View Details

March 2001
Article

Strategy and the Internet

By: M. E. Porter

Many of the pioneers of Internet business, both dot-coms and established companies, have competed in ways that violate nearly every precept of good strategy. Rather than focus on profits, they have chased customers indiscriminately through discounting, channel... View Details

Keywords: Strategy; Online Technology

Research Summary

Relative Thinking and Consumer Choice

By: Joshua R. Schwartzstein

Fixed differences appear smaller when compared to large differences. Professor Schwartzstein has proposed a model of relative thinking, in which a person weighs a given change by less when he compares it to a larger range. Relative thinking implies that a person is... View Details

February 2024 (Revised February 2024)
Case

CLSA: Integrating ESG in Stock Valuation

By: Shirley Lu, Aaron Yoon and Billy Chan

In 2023, a senior financial analyst at the Hong Kong-based stock brokerage firm CLSA was surprised to see that, based on his calculations, the financial impact from climate risks on a major Indian cement manufacturing company’s projected earnings could be massive.... View Details

Keywords: Accounting; Corporate Governance; Analysis; Stocks; Valuation; Environmental Sustainability; Financial Services Industry; Industrial Products Industry; Hong Kong; China; India; Asia